Phil Spencer of Microsoft Studios claims that Halo 4 is the most expensive game ever produced by Microsoft. No other game even comes close, according to Spencer.

In a recent interview with Polygon, Spencer claims that Halo 4 is the “most important entertainment product in the company.” Halo 4 is headed to global release on November 6th exclusively for the Xbox 360, and early indications are that it could be the best of the franchise yet; and could be poised to break previous sales records for the franchise.

Microsoft has a lot riding on Halo 4 with the creation of the new 343 Industries, which has become the developer of the franchise after the departure of Bungee after finishing Halo 3, and returning to an independent studio once again. Fans had expressed significant reservations over how Halo would be in the future and if 343 could carry on the tradition of the franchise, but early looks at the game seem to have washed those fears away, with players being very excited about the upcoming release of Halo 4.

Read more with Phil Spencer and learn about the play testing of Halo 4 here.